STIEBEL ELTRON SOM 7 SI - Manual (Page 6)

SOM 7 SI
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R2
S1
S2
R1
S3
S4 / TRF
1.2.4 Allocation of Clamps for System 3 Solar System with After-Heating with 1 tank, 3 sensors
and after-heating thermostatic control options. Sensor
S4/TRF can optionally be used for Energy Production
Measurement.
Arr 3
S1
S3
S4
R1
R2
S2
1.2.3 Allocation of Clamps for System 2 Solar System with Heat Exchange with an existing
tank. With 1 tank, 4 sensors and 2 pumps.
Arr 2
Tank 1 Tank 2
Symbol Specification
S1 Collector Sensor
S2 Lower Tank Sensor
S3 Upper Tank Sensor
S4 Tank 2 Sensor
R1 Solar Pump
R2 Pump for Heat Exchange
Symbol Specification
S1 Collector Sensor
S2 Lower Tank Sensor
S3 Upper Tank Sensor
S4 / TRF Sensor for Energy
Production Measurement
(Optional)
R1 Solar Pump